title: Synthesis of thienyl analogues of PCBM and investigation of morphology of mixtures in P3HT.
abstract: Novel [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) analogues containing benzo[b]thiophene (3a, 3b) and thieno[3,2-b]thiophene (3c, 3d) were synthesized and characterized. The morphology of the thin films prepared from the mixtures of these methanofullerenes with regioregular poly(3-hexylthiophene) (P3HT) was investigated by AFM measurement and UV-Vis absorption spectroscopy. A solubility test of these methanofullerenes was performed by using dichloromethane as a solvent. es-TThCBM (3d) exhibited 1.4 times greater solubility in dichloromethane than PCBM.
authors.affiliation: Osaka Municipal Technical Research Institute, 1-6-50 Morinomiya, Joto-ku, Osaka 536-8553, Japan. matumoto@omtri.city.osaka.jp
authors.forename: Fukashi
authors.initials: F
authors.lastname: Matsumoto
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Moriwaki
authors.forename: Yuko
authors.initials: Y
authors.lastname: Takao
authors.forename: Toshinobu
authors.initials: T
authors.lastname: Ohno